Tourists come from all over to visit Japan’s Toyama Bay between March and June, when millions of breeding firefly squid come to Toyama Bay to drop their eggs. The firefly squid is bioluminescent (buy-oh-loom-ih-NESS-cent), which means that is has special organs in its body that can produce light. Each of the squid’s tentacle has a light-producing organ called a photophore (FO-to-for). The squids flash these lights to attract small fish, on which the squid can then feed. The firefly squid can also light up its whole body to attract a mate.